FWIW ... we used that strategy on our first Christmas trip (week between Christmas and NY) and it worked beautifully! We got to the parks before rope drop and managed to ride whatever we wanted with very little need for fast passes. The day we hit MK we arrived early (still a little dark) and managed to do our favorites; HM, POC, SM, BTMRR, SM and (okay its a little hokey but ...) Carousel of Progress. We had a Dole Whip in Adventureland and all this was before we got into the cue for BOG for lunch. We waited about 20 minutes for that and left the park by about 1:00 for a leisurely trip back to the Boardwalk. Not a fast pass all day! Have a great trip ... we will be heading there on the 5th through the 9th for our first SB trip! Will try same strategy ... in warmer weather this time!